Spatial distribution of dynamic mechanical stresses in ionic crystals under the action of a pulsed electron beam

Abstract

We report on the results of experimental and theoretical investigation of the shape of an acoustic pulse generated in alkali-halide crystals by a pulsed electron beam with a maximal electron energy of 0.28 MeV and an energy density of 0.10-0.65 J/cm ². It is found that the shape of the acoustic pulse for the given beam parameters substantially differs from the absorbed energy density profile. The formation of the fine structure of the acoustic pulse is associated with local release of energy due to the evolution of multichannel electrical breakdown.

Original language	English
Pages (from-to)	225-229
Number of pages	5
Journal	Technical Physics
Volume	57
Issue number	2
DOIs	https://doi.org/10.1134/S1063784212020247
Publication status	Published - Feb 2012

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1134/S1063784212020247

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title = "Spatial distribution of dynamic mechanical stresses in ionic crystals under the action of a pulsed electron beam",

abstract = "We report on the results of experimental and theoretical investigation of the shape of an acoustic pulse generated in alkali-halide crystals by a pulsed electron beam with a maximal electron energy of 0.28 MeV and an energy density of 0.10-0.65 J/cm 2. It is found that the shape of the acoustic pulse for the given beam parameters substantially differs from the absorbed energy density profile. The formation of the fine structure of the acoustic pulse is associated with local release of energy due to the evolution of multichannel electrical breakdown.",

author = "Shtan'ko, {V. F.} and Tolmachev, {V. M.} and Chinkov, {E. P.} and Stepanov, {S. A.}",

year = "2012",

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doi = "10.1134/S1063784212020247",

language = "English",

volume = "57",

pages = "225--229",

journal = "Technical Physics",

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AU - Shtan'ko, V. F.

AU - Tolmachev, V. M.

AU - Chinkov, E. P.

AU - Stepanov, S. A.

PY - 2012/2

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N2 - We report on the results of experimental and theoretical investigation of the shape of an acoustic pulse generated in alkali-halide crystals by a pulsed electron beam with a maximal electron energy of 0.28 MeV and an energy density of 0.10-0.65 J/cm 2. It is found that the shape of the acoustic pulse for the given beam parameters substantially differs from the absorbed energy density profile. The formation of the fine structure of the acoustic pulse is associated with local release of energy due to the evolution of multichannel electrical breakdown.

AB - We report on the results of experimental and theoretical investigation of the shape of an acoustic pulse generated in alkali-halide crystals by a pulsed electron beam with a maximal electron energy of 0.28 MeV and an energy density of 0.10-0.65 J/cm 2. It is found that the shape of the acoustic pulse for the given beam parameters substantially differs from the absorbed energy density profile. The formation of the fine structure of the acoustic pulse is associated with local release of energy due to the evolution of multichannel electrical breakdown.

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